I have read in some of the instructions in some of the aircraft that I have downloaded that you need to have the expansion pack installed to use the plane.

I will try to look through them. Maybe, I guess, some of them are modified and/or use some of the sounds and parameters from the expansion pack aircraft.

I am only trying to help. I don't even sell the expansion pack to offer, so I am not trying to sway you. Either way.

What plane do you want from the expansion pack? I will send it to you.